/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package cn.edu.thu.laud.utils.serde;

import java.nio.ByteBuffer;

/**
 * @author zhuoan
 * 
 */
public class FloatConverter implements IConverter {

	private static final int SIZE = Float.SIZE / Byte.SIZE;

	@Override
	public Object getObject(ByteBuffer buffer, ConverterContext context) {
		if (buffer == null || buffer.remaining() < SIZE) {
			return null;
		}

		return buffer.getFloat();
	}

	@Override
	public ByteBuffer writeBytes(Object value, ByteBuffer buffer, ConverterContext context) {
		if (value == null) {
			return buffer;
		}

		ByteBuffer checked = ConverterContext.check(buffer, SIZE);
		
		return checked.putFloat((Float) value);
	}


	@Override
	public String getComparatorType() {
		return "FloatType";
	}

}
